QTL mapping and candidate gene identification of the full flowering date trait in olive trees (Olea Europaea L.).

ABSTRACT: Future climate models project that increases in global warming will have severe impacts on the flowering phenology of perennial fruit trees, including olive trees, a key species extensively cultivated in the Mediterranean region. Understanding the genetic factors regulating flowering is thus crucial to generate essential knowledge for the selection of suitable cultivars and for designing future olive breeding programs. Here we investigated genetic control of the full flowering date (FFD) trait through a quantitative trait loci (QTL) mapping approach. Two high-density parental genetic maps, with > 10k SNPs, were constructed based on an Olivière x Arbequina F1 hybrid olive progeny. Phenological observations of the same progeny were conducted across five environments (site × season), and the

SUBMITTER: Lamoumni O 

PROVIDER: S-EPMC12750909 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature